Home / 55,192.32-82,738.57-20,123.78

Finding the Fourth Proportional to 55,192.32, 82,738.57 and 20,123.78

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Solution

The fourth proportional to 55,192.32, 82,738.57 and 20,123.78 is: 30,167.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,192.32 : 82,738.57 = 20,123.78 : x
  2. Step 2: Convert to fraction form
    55,192.32/82,738.57 = 20,123.78/x
  3. Step 3: Cross multiply
    55,192.32x = 82,738.57 × 20,123.78
  4. Step 4: Simplify right side
    55,192.32x = 1,665,012,523.04
  5. Step 5: Solve for x
    x = 1,665,012,523.04/55,192.32
  6. Step 6: Final answer
    x = 30,167.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.